Fig. 2

Scanning electron micrograph and SEM-EDAX analysis of the precipitates formed after 7 days of As tolerance assays, using media for autotrophic (a) and heterotrophic (b) growth. The data show the minimum and maximum As (%wt) obtained.
Scanning electron micrograph and SEM-EDAX analysis of the precipitates formed after 7 days of As tolerance assays, using media for autotrophic (a) and heterotrophic (b) growth. The data show the minimum and maximum As (%wt) obtained.